/* 响应式设计 - 移动设备优先 */

/* 平板设备 (768px - 1023px) */
@media (max-width: 1023px) {
    .container {
        padding: 0 30px;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 项目详情页响应式 */
    .features-grid,
    .result-stats,
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .other-projects .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* 移动设备 (最大767px) */
@media (max-width: 767px) {
    .container {
        padding: 0 20px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    /* 导航栏响应式 */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 15px 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .language-switch {
        margin-left: 0;
        justify-content: center;
    }
    
    /* 英雄区域响应式 */
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-btns {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-btns .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    /* 网格布局响应式 */
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* 项目详情页响应式 */
    .page-hero {
        padding: 120px 0 40px;
    }
    
    .page-hero-content h1 {
        font-size: 2.2rem;
    }
    
    .page-hero-content p {
        font-size: 1.1rem;
    }
    
    .project-meta {
        flex-direction: column;
        gap: 15px;
    }
    
    .image-placeholder-large {
        height: 250px;
    }
    
    .image-placeholder-large i {
        font-size: 4rem;
    }
    
    .project-description h2 {
        font-size: 1.8rem;
    }
    
    .features-grid,
    .result-stats,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        padding: 20px;
    }
    
    .stat {
        padding: 20px 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-content p {
        font-size: 1.1rem;
    }
}

/* 小屏幕移动设备 (最大480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 15px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .project-info {
        padding: 20px;
    }
    
    .contact-form h3 {
        font-size: 1.3rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px;
        font-size: 15px;
    }
}
/* 平板设备 */
@media (max-width: 1023px) {
    .about-team-photo {
        height: 350px;
    }
}

/* 移动设备 */
@media (max-width: 767px) {
    .about-team-photo {
        height: 300px;
    }
    
    .team-photo-caption {
        font-size: 0.85rem;
    }
}